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Abstract

A technique is described whereby a slotted bracket, forming a part of the rear base assembly of a computer, is designed so as to allow installation of a series of circuit cards, which in turn have brackets attached to the base assembly. The slotted bracket is unique in that it forms a low impedance electrical ground between the base casting of the computer and the circuit card brackets without the need of adding additional parts to provide the ground. The slotted bracket 10, as shown in the front and side views of the figure, has circuit card 11 plugged into connector 12 which is part of planar board assembly 13 mounted onto die cast base 14. Circuit card 11 is also connected to an L-shaped card bracket 15 by means of connector 16 fastened with screws.

Country

United States

Language

English (United States)

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Slotted Bracket for Installation of Optional Circuit Cards With Electrical
Grounding Features

A technique is described whereby a slotted bracket, forming a part of the rear
base assembly of a computer, is designed so as to allow installation of a series
of circuit cards, which in turn have brackets attached to the base assembly. The
slotted bracket is unique in that it forms a low impedance electrical ground
between the base casting of the computer and the circuit card brackets without
the need of adding additional parts to provide the ground. The slotted bracket 10,
as shown in the front and side views of the figure, has circuit card 11 plugged
into connector 12 which is part of planar board assembly 13 mounted onto die
cast base 14. Circuit card 11 is also connected to an L-shaped card bracket 15
by means of connector 16 fastened with screws. Die cast base 14 includes
opening 17 which is partially closed by means of slotted bracket 10, through
which connector 19, fastened to L-shaped card bracket 15, may pass. All of the
connectors are used to make electrical connections to external devices; however,
some circuits have no external connectors. Circuit card 11 is installed by
pushing downward so that the appropriate connector 12 is connected as well as
pushing the lower end of card bracket 15 into contact area 20. The lower portion
of slotted bracket 10 has a slotted tab 21, which extends toward the front, and a
contact tab 22, which extends downward so as to pro...